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3/13/2019

What Is CPU, Component and Function of CPU on Computer

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The use of computers or laptops cannot be released in today's modern life. With computers all work can be done easily and quickly. 

In everyday life, computer devices can be used as work or business facilities, communication facilities, entertainment facilities, educational facilities, information facilities, business facilities and means of control of things.

For those of you who used to use a computer or laptop device must be familiar with the term CPU. A computer must have a CPU to support the overall operation of the device.

The CPU is a hardware device that has a big contribution to the operation of a computer system. On a computer, the CPU is usually in the form of hardware that is connected to the monitor screen to get system commands. On a laptop or notebook, the CPU is installed in the laptop or notebook device itself.
What Is CPU, Component and Function of CPU on Computer
(Source: iStockphoto)
Well for those who are not experts in the world of computers, many do not know more clearly about the understanding and function of the CPU. The following is a review of the understanding and functioning of CPUs that are successful in summarizing alltutorials.info from various sources Wednesday (03/13/2019).


Get to know the CPU

The CPU stands for Central Processing Unit, another term for the CPU is the processor. In general, the CPU is responsible for executing commands from a computer device. You could say, the CPU is the brain of a computer device.

The CPU will understand and implement commands and data from a computer software. CPU execution speed depends on one of the frequencies that are owned, the frequency unit of a CPU is MHz (MegaHertz) or GHz (1 GigaHertz = 1000 MegaHertz).

The higher the speed of the processor, the higher and faster the performance of a computer. Companies that are famous for producing CPUs are INTEL and AMD.

CPU Component

A CPU consists of several components that support its performance. These components such as control units, registers, ALU, and interconnection.

The control unit works to regulate the course of the program. The control unit will take instructions from the main memory and determine the type of instruction. If there are instructions for arithmetic calculations or logic comparisons, the control unit will send the instructions to ALU. The results of processing data are carried by the control unit to the main memory again for storage.

Registers act as small storage devices that have a fairly high access speed, which is used to store data or instructions that are being processed. This memory is temporary, usually used to store data when processed or data for subsequent processing.

ALU is a unit whose task is to carry out arithmetic operations and logical operations based on specified instructions. ALU is often called machine language because ALU consists of two parts, namely arithmetic units and boolean logic units, each of which has its own task specifications.

While the connection is a connection system that connects the components on the CPU to be able to do the work according to the instructions.

CPU Function

CPU functions have an important role in the overall operation of the computer. CPU functions are similar to calculators with faster and stronger processing power.

The main function of the CPU is to process and process all calculations, commands and conduct arithmetic and logic operations on data taken from memory or from information entered through other hardware to support computer operations.

The function of the CPU is to run programs stored in main memory by translating instructions executing them one by one according to the command flow. The CPU is controlled using a set of computer software instructions.

Processing CPU instructions is divided into two stages, Phase-I is called Instruction Fetch, while Phase-II is called Execute Instruction. During Phase-I the Control Unit takes data or instructions from the main-memory to the register, while during Phase-II the Control Unit delivers data or instructions from the register to main-memory to be accommodated in the MAA, after the Instruction Fetch is done. How the CPU works

How the CPU works can be easily understood after knowing the CPU components and functions. When data or commands are entered into the processor, data or commands are placed through input storage in MMA. If in the form of an order, it will be forwarded by the control unit, but if in the form of data it will be accommodated by working storage.

If the register is ready to execute a command, the control unit will channel commands from the storage program to the register. If based on work instructions in the form of arithmetic and logic, ALU will take over the operation to work on the instructions specified.

After the processing results have been completed, the control unit will retrieve the results of processing in the accumulator to be accommodated back to Working-storage.

If the overall workmanship has been completed, the control unit will pick up the processing results from the Working-storage to be accommodated into the Output-storage. Then from Output-storage, the processing results will be displayed to output-devices.

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